120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <locale.h>
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#include "mozilla/intl/Locale.h"
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#include "OSPreferences.h"
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#include "nsServiceManagerUtils.h"
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#include "nsIGSettingsService.h"
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using namespace mozilla;
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using namespace mozilla::intl;
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OSPreferences::OSPreferences() = default;
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bool OSPreferences::ReadSystemLocales(nsTArray<nsCString>& aLocaleList) {
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MOZ_ASSERT(aLocaleList.IsEmpty());
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nsAutoCString defaultLang(Locale::GetDefaultLocale());
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if (CanonicalizeLanguageTag(defaultLang)) {
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aLocaleList.AppendElement(defaultLang);
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return true;
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}
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return false;
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}
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bool OSPreferences::ReadRegionalPrefsLocales(nsTArray<nsCString>& aLocaleList) {
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MOZ_ASSERT(aLocaleList.IsEmpty());
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// For now we're just taking the LC_TIME from POSIX environment for all
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// regional preferences.
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nsAutoCString localeStr(setlocale(LC_TIME, nullptr));
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if (CanonicalizeLanguageTag(localeStr)) {
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aLocaleList.AppendElement(localeStr);
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return true;
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}
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return false;
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}
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/*
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* This looks up into gtk settings for hourCycle format.
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*
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* This works for all GUIs that use gtk settings like Gnome, Elementary etc.
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*
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* We're taking the current 12/24h settings irrelevant of the locale, because
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* in the UI user selects this setting for all locales.
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*/
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static int HourCycle() {
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nsCOMPtr<nsIGSettingsService> gsettings =
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do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
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if (!gsettings) {
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return 0;
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}
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nsCOMPtr<nsIGSettingsCollection> desktop_settings;
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gsettings->GetCollectionForSchema("org.gnome.desktop.interface"_ns,
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getter_AddRefs(desktop_settings));
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if (!desktop_settings) {
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return 0;
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}
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nsAutoCString result;
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desktop_settings->GetString("clock-format"_ns, result);
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if (result == "12h") {
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return 12;
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}
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if (result == "24h") {
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return 24;
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}
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return 0;
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}
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/**
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* Since Gtk does not provide a way to customize or format date/time patterns,
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* we're reusing ICU data here, but we do modify it according to the only
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* setting Gtk gives us - hourCycle.
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*
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* This means that for gtk we will return a pattern from ICU altered to
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* represent h12/h24 hour cycle if the user modified the default value.
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*
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* In short, this should work like this:
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*
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* * gtk defaults, pl: 24h
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* * gtk defaults, en: 12h
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*
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* * gtk 12h, pl: 12h
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* * gtk 12h, en: 12h
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*
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* * gtk 24h, pl: 24h
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* * gtk 12h, en: 12h
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*/
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bool OSPreferences::ReadDateTimePattern(DateTimeFormatStyle aDateStyle,
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DateTimeFormatStyle aTimeStyle,
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const nsACString& aLocale,
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nsACString& aRetVal) {
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nsAutoCString skeleton;
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if (!GetDateTimeSkeletonForStyle(aDateStyle, aTimeStyle, aLocale, skeleton)) {
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return false;
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}
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// Customize the skeleton if necessary to reflect user's 12/24hr pref
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int hourCycle = HourCycle();
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if (hourCycle == 12 || hourCycle == 24) {
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OverrideSkeletonHourCycle(hourCycle == 24, skeleton);
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}
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if (!GetPatternForSkeleton(skeleton, aLocale, aRetVal)) {
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return false;
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}
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return true;
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}
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void OSPreferences::RemoveObservers() {}
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